A number of sailings on an essential cargo supply route between Dublin and Liverpool remain suspended due to a row over port fees.
The owners of Liverpool port say they are owed nearly €690,000 by P&O Ferries.
P&O says the fees should be much less but their ship has been impounded in Liverpool until a resolution is agreed.
The route accounts for about 15% of cargo between Ireland and the UK.
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Former President of the Irish Road Haulage Association, Jimmy Quinn, says the route's other competitor also has restricted trucker access.
